At the Pittsburgh mayor's office, Ravenstahl's name is still on the door, and he intends to keep it there through the end of the year, but other mayoral hopefuls are already envisioning their name above the entrance.

Jack Wagner, a former state auditor general and city council president, is out of the country on a trip in Israel, but Channel 4 Action News reporter Bob Mayo confirmed that Wager is definitely in the mayor's race. Mayo obtained a photo of Wagner's petitions, fresh from the printer, to get on the Democratic mayoral primary ballot.

City Council President Darlene Harris said to count her in as a candidate for mayor. She started circulating petitions over the weekend to get on the spring ballot.

"I know this job well," Harris told Mayo. "I have been around the city for 35 years. I believe I'm mature enough, and I think it's time we look at another woman."

State Sen. Jim Ferlo, a former council president, told Mayo he'll likely commit on Tuesday to circulating his own mayor's race petitions.

"It's really a whole new ballgame, so actually, I hope people consider this really exciting, because I think it opens up the race to a lot of different ideas and philosophies and a lot of different talents that would be brought to this race," said Ferlo.

Former county executive Dan Onorato is keeping silent so far but is regarded as a strong contender if he chooses to run.

State Rep. Jake Wheatley's name is being mentioned in political circles, but so far, he's not commenting.

"I think that this is going to be primary race that's going to be more interesting than any we've had in the past," said Allegheny County Democratic Party Chair Nancy Patton Mills.

Patton said that the only candidates to file for the Democratic Party endorsement by the Feb. 1 deadline were Ravenstahl and Lamb.

She said that means that of the current candidates, only Lamb is eligible to win the endorsement when committee members meet on March 10 to vote.

The party has written Ravenstahl, asking if he will formally withdraw his name from the committee ballot. Ravenstahl has until Wednesday, March 6 at 5 p.m. to respond. The deadline for circulating petitions to get on the spring election ballot is March 12.